| 摘要 |
Apparatus and method of exchanging lubricating oil from the crankcase of a compressor. A unit including a pretrimmed flexible tube is introduced into the oil fill plug opening. By opening an internal valve, the oil under pressure exits through an opening in the unit, which is connected to a drain hose. After emptying, a hand oil pump is connected to the unit and fresh oil introduced into the compressor crankcase.
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